CONTENTS. Ill 



Page. 



Plant, phosphorite, and soil accordi"nf? to experiments, Kossovich 623 



The mining of phosphate with special reference to Florida phosphate, Grothe.. 623 



The western phosphate lands, Duffield 623 



Rational use of lime on land, Agee 624 



Fertilizing with carbon dioxid, Mitscherlich 624 



Inspection and analyses of cotton-seed meal on sale in Mississippi, Hand et al. . 624 



Report on commercial fertilizers, 1909, Jenkins and Street 624 



Inspection and analyses of commercial fertilizers. Hand et al 624 



Analyses and valuations of commercial fertilizers and bone, Cathcart et al 625 



Analyses of commercial fertilizers, Hardin 625 



[Amount and price of fertilizers used in Germany, 1903 to 1908] 625 



AGRICULTURAL BOTANY. 



Application of some of the principles of heredity to plant breeding, Spillman. . 625 



The mutation theory, Dc Vries, trans, by Farmer and Darbishire 625 



The origin and relationship of new varieties of cereals, Kornicke 626 



The wild type of the cultivated potato, Berthault 626 



The transmission of variations in the potato in asexual reproduction, East 626 



A Mendelian interpretation of variation that is apparently continuous, East. . . 627 



Color inheritance in Lychnis dioica, Shull 628 



Genetical studies on (Enothera, I, Davis 628 



Future methods of soil bacteriological investigations. Conn 628 



Studies on the micro-organism producing the legume tubercles, De Rossi 628 



Research on the proteolytic enzyms in fungi and bacteria, Wilson 628 



The germicidal action of metals, Rankin 629 



Effect of salts on respiration of germinating seeds, Zaleski and Reinhard 629 



The significance of the liberation of water vapor by plants, Leclerc du Sablon. . 630 



The occurrence of hydrocyanic acid in some mushrooms, Greshoff 630 



The mistletoe pest in the Southwest, Bray 630 



Seeds and plants imported during the period from April 1 to June 30, 1909 630 



FIELD CROPS. 



Experiment on the fertilizer requirements of meadows, Wagner 630 



Pastures and meadows in the Weichsel marshes, Weber 631 



Promising root crops for the South 631 



Variegated alfalfa, Westgate 632 



The influence of storage and drying on barley, Windisch and Bischkopff 632 



Corn culture, Kimbrough 633 



Value of nitrogenous materials for cotton on the Houston clays, Stevens 633 



Varieties of American Upland cotton, Tyler 635 



Cotton culture, Kimbrough . , 635 



Notes on cotton cultivation in Nyasaland, McCall 635 



Cotton facts, Shepperson 636 



Cotton, the greatest of cash crops, Knapp 636 



Broom millet, Marks 636 



Oats, Montgomery 636 



Improvements in paddy cultivation at Sivagiri, Tinnevelly district, Lonsdale. 636 



Biological studies of green and brown kernels of summer rye, Gross 637 



Sisal hemp, Wells 637 



Select list of references on sugar chiefly in its economic aspects, Meyer 637 



Report on tobacco from Nyasaland, Dunstan 637 



A text-book on tobacco, Wei'ner 637 



The present status of the tobacco industry. Garner 637 



[Protein and water content of seven varieties of wheat], Keitt 637 



Adulteration of alfalfa, clover, orchard grass, and Kentucky blue grass. Woods. . 638 



Seed inspections 638 



The grass and clover seed trade in Vermont in 1907-1909, Harrington 638 



Cuscuta europsea and its hosts, Wittrock 638 



The common toad flax, Kraus 638 



HORTICULTURE. 



New methods of plant breeding, Oliver 638 



Parthenogenesis among orchard trees and other fruit-bearing plants, Ewert 639 



The resistance of plants to frost 639 



